PROBLEM ONE productivity The following table shows data on the average number of customers served by several technical service units each day. Customers Served Unit Employees 72 80 120 40 The hourly wage rate is $21.00, the overhead rate is 2.5 times the labor cost, and the material cost is $2.00 per customer. Use an eight-hour day workday. Revenue is $100.00 per customer. Compute (1) labor productivity and (2) the multifactor productivity for each unit